hyroot
Well-Known Member
You do know those 900's are rebranded allstart 860's....Those are the old bulbs not designed for horti which I use and IME blows all hps away. Here's info on the new lamps. Which are developed for horticulture.
http://dnalightingsolutions.com/
i run 3 cmh in veg and two cmh 1 hps in flower.